Cotton gin



R. L- WILLIS COTTON GIN Sept. 20, 1927.

Filed April 29, 1926 2 Sheets-Sheet l jwventov RAY L. WILL/5 R. L. WILLIS COTTON GIN Sept. 20 1927.

Filed April 29'. 1926 2 Sheets-Shea}. 2

' RAY L. MbL/S Patented Sept. 20, 1927.

a hopper ribbed -to separate the seeds, and

RAY L. IL IS, F ARVIN, CALIFORNIA. 7

common GIN.

Application filed April 29, 1926.1 Serial No. 105,581.

My invention relates 1 to pneumatic or brush gins of the character having saw blades which revolve to remove cotton from an air nozzle or rotary brush for removing I the gin is contaminated.

It is *a'purpOse of my invention to provide the'lint from the bladesand discharging the lint into a flue. In ootton'gins of this character, the lll'JbQCl'llOPPGl',111 its association with the saw blades, does not remove the inote and partic'lescof dirt from the cotton, so that the cotton as finally delivered from a cotton gin of the above described character having means for ren'ioving'from the cotton motef and" dirt and otherwise eifectively cleaning the cotton. More specifically, my invention provides a single air nozzle or a plurality of airnozzles arranged to deliver jets or air to the'cotton while on the saw blades and during its passage from the ribbed hopper to the lint removing nozzle, whereby the air iseinployed to remove mote and dirt from the cotton without removing the cotton from the saw blades so that the cleansed cotton can be finally removed inthe usual manner.

I-will describe only one form of cotton gin embodying my invention, and will then point out the novel features thereof in claims.

In the accompanying drawings, a

Figure 1 is a view showing in vertical transverse section one form of cotton gin embodying my invention;

Figure'2 is a. sectional view taken on the line 2-2 of Figure 1;

Figure 3 is a fragmentary vertical sectional view showing a modified form of air nozzle in applied position to one of the saw blades of the gin and embodying my invention; r V

Figure 4 is-a view showing in edge elevation a plurality of the air nozzles shown in Figure 3. associated with a plurality of saw blades. I

Referring specifically to the drawings, in which similar reference characters refer to similar parts, the cotton gin shown in Figare all fixed to a common shaft 19, and the shaft is adapted 'to be driven inrany suitable manner to eii'ect continuous rotation of all of the blades; in a clockwise direction so that the teeth thereof move in the direction in which they extend An air channel 20 is varranged and constructed to provide an air nozzle 21 from which air is discharged tangentially with respect to the peripheries of the several bladesi17 for the purpose of re moving lint from the blades anddischarging the same into a flue 22. The gin, of course, consists of other elements, but a description of these elements is not necessary to a clear understanding of myinvention.

'The subject matter of my invention comprises, asshown in Figures 1 and2, an air channel 23 disposed below the lint flue 22 and substantially concentric therewith, its

1 upper end terminating in an elongated nozzle 24 extending beneatl1i;a11d across the blade 17 and arranged to discharge air upwardly to, opposite, sides of theblades and outwardly across the teeth of the blades, and finally into a flue 25 arranged between the hopper 15 and the nozzle 21.

In the modification shown in Figures 3 and 4, I employ a plurality of air nozzles 26 with each nozzle interposed between any two adjacent blades and arranged to discharge jets of air upwardly into the flue 25 in the same manner as the common air nozzle 2 1. j

In the operation of the cotton gin, the cot ton which is dumped into the hopper 15 is engaged by the teeth 18 of the saw blades 17, and under the constant rotation of the blades the cotton is fed downwardly and outwardly-of the hopper between the ribs 16,

the latter serving to remove the seeds from 24 or the nozzles 26, and under the action of the latter the mote and particles of dirt are blown from the cotton and discharged into the flue 25, the fibers of cotton remaining on the blades by virtue of the fact that the current of air from the nozzle moves in a direction opposed to the direction of movement of the saw teeth, and further because of the direction in which the saw teeth extend. Hence it willbe seen that the cotton is carried downwardly on the teeth of the saw blades beyond the month ot the fine 25, so as to be acted upon by the air emanating from the nozzle 21. which operates to remove the cotton from the RtlW blades. It will thus be seen that during transit of the cotton 'troin the ribs to the air nozzle 21., the Inot-e and dirt particles are removed front the cotton So that, the latter as linally discharged into the ttne is clean.

iUthongh l have herein shown and derit'lllinitl. only one 'lorm of cotton gin and two lt'nlns of air nozzles: all enilnnlying' nrv inrcntion, it in to be linderstotnl that various changes and lllUtllllUtLl lUlh-l may he made therein without departing l'rom the spirit ot the lllVt-lltltllll and the spirit and scope of the appended claims.

1 claim as my invention:

1. A cotton gin having rotary saw blades, the teeth of which extend in the direction oi? rotation oi the blades. and pneumatic means tor eleanning the seed cotton While on the blades and without removing the cotion therefrom, whereby the cotton \\'ill. be cleaned during the ginning thcreot'.

:3. A. cotton gin having a ribbed hopper, an air nozzle spaced front the hopper. rcrolving saw bladee -for trans'lerring seed cot:- ton on the teeth thereof from the hopper to the air nozzle, and means for cleansing the cotton during transit from the hopper to the air nozzle, whereby the cotton will be cleaned while being grinned.

:l. A cotton gin having a. ribbed hopper, an air nozzle spaced from the hopper, revolving;- saw blades for transferring cotton on the teeth thereoit from the hopper to the air nozzle, and an air nozzle for directing jets of air in a direction opposed to the direction of rotation ol? the saw blades and in a manner to cleanse the need cotton during transit 'flOlll the hopper to the lirst; air noz zle. whereby the cotton will be cleaned durl ing the ginning thereof. l

-t-. A. cotton gin having rotary saw blades,

the teeth of which extend in the direction ol rotation of the blades, and means tor cleaneing the seed cotton while on the blades and without removing the cotton thert-ifroni, whereby the cotton will be cleaned during the ginning thereof.

As an article of manufacture, an air nozzle adapted to be associated with the rotary saw blades of a cotton gin to discharge jets of air in a direction opposed to the direction of rotation ol the blades and against the teeth thereof to cleanse the seed cotton While on the blades, whereby the cotton will be cleaned during the ginning thereof.

RAY L. WILLIS. 

